Timken Super Precision Bearings for Machine Tool Applications

Ball Bearings
WI CONSTRUCTION
• Incorporates low shoulder on non-thrust side of outer rings.
• Balls separated by one-piece cage piloted against a ground
thrust shoulder land of the outer ring.
2
Max. Min. Max. Min. Max. Min. Loose Tight Max. Min. Tight Loose Max. Min. Loose Loose
Suggested Shoulder Diameters Shaft Diameter Mounting Fits
Housing Bore
Housing Bore
Mounting Fits
Shaft
Housing
(Stationary)
(Stationary)
r
Rad. (2) Mounting Fits
mm/in. mm/in. mm/in. mm/in. mm/in. mm/in. mm/in. mm/in. mm/in.
2.0 97.4 96.7 138.8 138.1 85.005 84.995 0.005 0.012 150.009 150.000 0.000 0.018 150.023 150.012 0.032 0.012
0.079 3.84 3.81 5.47 5.44 3.34670 3.34630 0.00020 0.00050 5.90590 5.90550 0.00000 0.00070 5.90640 5.90600 0.00120 0.00050
2.0 103.5 102.7 148.0 147.2 90.005 89.995 0.005 0.013 160.009 160.000 0.000 0.022 160.022 160.012 0.033 0.012
0.079 4.08 4.05 5.83 5.80 3.54350 3.54310 0.00020 0.00050 6.29960 6.29920 0.00000 0.00080 6.30010 6.29970 0.00130 0.00050
2.1 109.4 108.6 157.1 153.3 95.005 94.995 0.005 0.013 170.010 170.000 0.000 0.020 170.022 170.012 0.032 0.012
0.079 4.31 4.28 6.19 6.16 3.74040 3.74000 0.00020 0.00050 6.69330 6.69290 0.00000 0.00080 6.69380 6.69340 0.00130 0.00050
2.1 115.2 114.4 166.0 165.2 100.005 99.995 0.005 0.013 180.010 180.000 0.000 0.020 180.022 180.012 0.032 0.012
0.079 4.54 4.51 6.54 6.51 3.93720 3.93680 0.00020 0.00050 7.08700 7.08660 0.00000 0.00080 7.08750 7.08710 0.00130 0.00050
2.1 127.1 126.4 184.3 183.5 110.005 109.995 0.005 0.013 200.011 200.000 0.000 0.022 200.025 200.015 0.036 0.015
0.079 5.01 4.98 7.26 7.23 4.33090 4.33050 0.00020 0.00050 7.87450 7.87400 0.00000 0.00090 7.87500 7.87460 0.00150 0.00060
2.1 138.1 137.3 198.5 197.7 120.005 119.995 0.005 0.013 215.011 215.000 0.000 0.022 215.025 215.015 0.036 0.015
0.079 5.44 5.41 7.82 7.79 4.72460 4.72420 0.00020 0.00050 8.46510 8.46460 0.00000 0.00090 8.46560 8.46520 0.00150 0.00060
2.5 150.5 149.7 211.0 210.2 130.005 129.995 0.005 0.015 230.011 230.000 0.000 0.022 230.025 230.015 0.036 0.015
0.098 5.93 5.90 8.31 8.28 5.11830 5.11790 0.00020 0.00060 9.05560 9.05510 0.00000 0.00090 9.05610 9.05570 0.00150 0.00060
2.5 172.6 171.8 248.8 248.0 150.005 149.995 0.005 0.015 270.013 270.000 0.000 0.026 270.031 270.018 0.044 0.018
0.098 6.80 6.77 9.80 9.77 5.90570 5.90530 0.00020 0.00060 10.63040 10.62990 0.00000 0.00100 10.63120 10.63070 0.00180 0.00080
FIXED
FLOATING
C
TIMKEN MACHINE TOOL CATALOG 187